hello,
How to let copper zones passes between the pads of IC’s. There is 0.5 mm between these pads and I would like to use it to spread the ground on all my PCB.
Thanks for your help.
In the settings of the zone you have clearence and minimum width.
reducing them could allow you to have copper between these pads.
BUT 0.5 mm is not a lot of space. You need to check your manufacturers capabilities first.
The things you need to look up are:
- your manufacturers minimal clearance (pad to copper)
- your manufacturers minimal copper width.
I’m quite sure 0.5 mm will not be enough to achieve what you want.
You have at least one GND pin. This pin can be used to get your GND zone in there.
A more important question: Is it even worth it? To answer this question more information is needed.
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Between the pads of IC I have 0.5mm + 2x0.2mm for clearance. I will ask to my manufacturer if it is ok!
Thank you for your help.
That should be within the capabilities of any board fabricator who is within 10 years of up-to-date.
(You originally mentioned only the 0.5 mm value, leaving us to imagine that 0.5 mm was all you had for not only the copper trace, but also the trace-to-pad clearances. That is essentially right on the edge of what many vendors can do.)
You may have to play with the “Clearance” and “Minimum Width” parameters of your filled zone to make it put copper between those pads. And when you get this location to work, you may not like the appearance in other areas of the zone. In a case like this I would explicitly place a 0.5 mm trace between those pads rather than let the zone filling algorithm do the work for you.
Dale
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